电与磁PDF电子书下载

Electricity and Magnetism 12

Nature of Science:An Electrical Engineer in Outer Space 12

Chapter 1　Magnetism and Electromagnetism 16

1 The Nature of Magnetism 18

2 Integrating Earth Science:Magnetic Earth 28

3 Electric Current and Magnetic Fields 34

4 Electromagnets 42

Chapter 2 Electric Charges and Current 48

1 Electric Charge and Static Electricity 50

2 Circuit Measurements 60

3 Series and Parallel Circuits 68

4 Integrating Health:Electrical Safety 72

Chapter 3 Electricity and Magnetism at Work 80

1 Electricity,Magnetism,and Motion 82

2 Generating Electric Current 88

3 Using Electric Power 96

4 Integrating Chemistry:Batteries 103

Chapter 4 Electronics 114

1 Electronic Signals and Semiconductors 116

2 Electronic Communication 124

3 Computers 132

4 Integrating Technology:The Information Superhighway 142

Interdisciplinary Exploration:Edison—Genius of Invention 150

Reference Section 156

Skills Handbook 156

Think Like a Scientist 156

Making Measurements 158

Conducting a Scientific Investigation 160

Thinking Critically 162

Organizing Information 164

Creating Data Tables and Graphs 166

Appendix A:Laboratory Safety 169

Glossary 172

Index 176

Acknowledgments 180

Inquiry Activities 17

CHAPTER PROJECT 17

Opportunities for long-term inquiry 17

Chapter 1:Electromagnetic Fishing Derby 17

Chapter 2:Cause for Alarm 49

Chapter 3:Electrical Energy Audit 81

Chapter 4:Bits and Bytes 115

DISCOVER 18

Exploration and inquiry before reading 18

What Do All Magnets Have in Common? 18

Can You Use a Needle to Make a Compass? 28

Are Magnetic Fields Limited to Magnets? 34

How Do You Turn a Magnet On and Off? 42

Can You Move a Can Without Touching It? 50

How Can Current Be Measured? 60

Do the Lights Keep Shining? 68

How Can You Blow a Fuse? 72

How Does a Magnet Move a Wire? 82

Can You Produce Electric Current Without a Battery? 88

How Can You Make a Bulb Burn More Brightly? 96

Can You Make Electricity With Spare Change? 103

Can You Send Information With a Flashlight? 116

AreYou Seeing Spots? 124

How Fast Are You? 132

How ImportantAre Computers? 142

Sharpen your Skills 20

Practice of specific science inquiry skills 20

Observing 20

Measuring 29

Classifying 38

Drawing Conclusions 52

Calculating 64

Predicting 70

Classifying 91

Observing 99

Communicating 121

Calculating 134

TRY Tuis 24

Reinforcement of key concepts 24

How Attractive! 24

Spinning in Circles 31

Sparks Are Flying 54

Down the Tubes 63

Keeping Current 90

What a Web You Weave 144

Skilla Lab 58

In-depth practice of inquiry skills 58

The Versorium 58

Electricity Grows on Trees 108

The Penny Computer 140

Real-World Lab 26

Everyday application of science concepts 26

Detecting Fake Coins 26

Build a Flashlight 40

Constructing a Dimmer Switch 66

Building an Electric Motor 86

Design a Battery Sensor 123

Interdisciplinary Activities 100

Science and History 100

The History of Electric Power 100

The Development of Computers 136

Science and Society 110

Disposing of Batteries Safely 110

When Seeing ISN'T Believing 146

Connection 32

Language Arts 32

Social Studies 74

Social Studies 84

Music 118